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China, Chinese Stellite 21 Hardfacing Powder - Cobalt Based Alloy1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Welding Soldering SuppliesOther Welding Soldering SuppliesStellite 21 Hardfacing PowderUns R30021
Wisdom Import & Export (Shanghai) Co., Ltd.
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Product Description Product DescriptionWD-Co21 (previously known as WD-Co8) was developed in the mid 1930s as a corrosion resistant CoCr alloy, and rapidly found application as a biocompatible hip implant and denture alloy. Many of the alloys currently used in medical applications are variants of the original WD-Co21 composition. It was also one of the first heat-resistant alloys trialled for use in jet engines. WD-Co21 consists of a CoCrMo alloy matrix containing dispersed hard carbides which strengthen the alloy and increase its hardness, but also decrease the ductility. The type, shape, size, and distribution of the carbides is strongly influenced by the processing history of the alloy, and for this reason the mechanical properties of WD-Co21 are very dependent upon the manufacturing route and any subsequent heat treatments. Due to the low volume fraction of carbides, the Co-based alloy matrix dominates the wear and corrosion properties. WD-Co21 has excellent cavitation, galling and metal-to-metal sliding wear resistance, but is not recommended for severe hard particle abrasion. The surface can work harden considerably during wear or even during machining, and the use of correct machining tools and techniques is important to achieve optimal results. WD-Co21 has excellent resistance to thermal and mechanical shock. Optimum high temperature strength is obtained by solution heat treatments at 1200-1240oC (2190 - 2265oF) followed by quenching, and aging in the temperature range 7001150°C (1290-2100°F). WD-Co21 can be cast, powder metallurgically processed, or applied as a weld hardfacing. It is recommended for applications involving cavitation, erosion, corrosion and/or high temperatures, such as valve trim for petrochemical and power generation. Due to its good impact resistance, it has been widely used in the building up of forging or hot stamping dies. The oxyacetylene weld deposition method is not recommended for this alloy. BrandWisdomModel NumberWD-Co21Form / ShapePowderDimensions180/53, 180/63, 150/45, 150/63, 150/53, 125/38, 250/45, 45/20, 53/20 μmProcessPTA, HVOF, Laser Cladding, Plasma SprayApplicationHardfacing, Wear-resistance, Corrosion-resistanceEquivalentStellite 21, BISHILITE (MHA) No.21, Weartech WT-21, Hoganas 2628-02, 2528-00CertificationISO 9001:2015Test ReportSigned & StampedFree DocsCO / GSP Form A E F PCurrencyUSD/EUR/GBP/RMBLead TimeShipment within 10 daysLabelBrand, Neutral or CustomizedSpecification UNS R30021Metal to metal WearExcellentCold / Hot AbrasionGood / GoodErosion / CorrosionExcellent / ExcellentImpactExcellentMagneticNoDeposit LayersMultipleThermal Conductivity14.5 W/m.K, 100.5 Btu-in/hr/ft2/°FElectrical Resistivity87.38 μ-ohm.cm, 34.4 μ-ohm.inchChemical Composition (%)CoCrMoCNiOthersHardnessDensityMelting RangeBal.26-294.5-6.00.20-0.352.0-3.0Fe, Si, Mn27-40 HRC8.33 g/cm31295-1435 oCForms & Grades Bare RodGrade: Co 1, 6, 12, 21, 25, 32, 190Process: Oxy-acetylene/OAW, TIG/GTAW, ERW & other Automatic/Robotic systemDIA. (mm): 2.4, 2.6, 3.2, 4.0, 4.8, 5.0, 6.4, 8.0DIA. (inch): 3/32, 1/8, 5/32, 3/16, 1/4, 5/16LEN. (mm): 300, 350, 450, 500, 1000, 1500, 2000, 3000, 4000 PowderGrade: Co 1, 6, 12, 21, 25, 190Process: PTA, HVOF, Laser Cladding, Plasma SprayParticle Size (μm): 180/53, 180/63, 150/45, 150/63, 150/53, 125/38, 250/45, 45/20, 53/20Particle Size (mesh): 80/270, 80/230, 100/325, 100/230, 100/270, 120/400, 60/325, 325/635, 270/635 Covered/Coated/Stick ElectrodeGrade: Co 1, 6, 12, 21Process: SMAW/MMA/MMAWDIA. (mm): 2.4, 2.6, 3.2, 4.0, 4.8, 5.0DIA. (inch): 3/32, 1/8, 5/32, 3/16LEN. (mm): 300, 350, 450Grade ColorBlack: Co 1 Red: Co 6 Green: Co 12 Blue: Co 21 AdvantagesQualityISO 9001:2015 & Thorough inspection 20 years experience in productionOEM for world-class companiesPrice Most competitive price ever Multi saving solutions Aperiodic promotions Service 7×24 services & Fast lead time Free samples & Low MOQ Various payment termsCertifications Applications Packing & DeliveryPacking: for different forms we use different packing as pictures belowLabel: Brand, Neutral or CustomizedDelivery: 5 - 20 days, by Sea, Air or Express FAQQ1. What is your product line?A: We specialize in hardfacing & wear-resistant welding / thermal spray consumables, with the strength of Cobalt, Nickel and Iron based alloys in form of rod, powder and electrode.Q2. Can I have a sample order?A: Yes, we offer FREE sample for inspection. Mixed samples are acceptable.Q3. What about the lead time?A: Sample needs 1-3 days, mass production needs 1-2 weeks for order quantity more than 100kgs.Q4. Do you have any MOQ limit?A: Low MOQ, 3-5 pcs for sample checking is available.Q5. How do you ship the goods and how long does it take to arrive?A: Depends on the transportation you choose. It usually takes 3 weeks to arrive by sea. Airline and Express shipping are also optional.Q6. Do you have a fixed price list?A: We do not. We quote based on the result we evaluate customers from various aspects, such as quantity, payment term, lead time, etc.Q7. Is it OK to label my logo on packages?A: Yes. Please inform us formally before the production. You could confirm the design earlier based on our sample.Q8. How to deal with the faulty?A: Our products are produced in strict quality control system and the defective rate will be lessthan 0.1%. If you do receive items with fault, we offer 100% refund or replacement.
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